After more than 12 hours of deliberation, a Boulder County jury still has not reached a verdict in the case of Frederick Allen, a 32-year-old diabetic accused of drugging a University of Colorado student with insulin before raping her in February 2011.

The jurors have adjourned for the day and will return Tuesday morning to continue deliberations. The jurors heard closing arguments from attorneys Friday morning after a two week trial and deliberated for six hours Friday and for another eight hours today.

Allen faces nine felonies, including three counts of sexual assault, first-degree assault, two counts of second-degree assault and tampering with physical evidence, after being indicted by the Boulder County grand jury in January 2012.

According to the indictment, Allen met the victim at the Sundown Saloon on the Pearl Street Mall. The two previously had met, but had never really talked to each other. During the encounter in February 2011, Allen and the woman talked until the bar closed, at which point he offered to walk her to her nearby home.

One of the victim's roommates -- who remembered the victim coming home with a man the previous night -- noticed the victim's door was locked at 1 p.m. the next day and did not see the victim again until 10 p.m. that night when she checked again and found her door unlocked, according to police.

The roommate told investigators the victim's room was a mess and she found the victim naked on the bed, according to the indictment. She appeared to have thrown up and was sweaty and having trouble focusing.

Investigators found a note in the victim's room that prosecutors say was from Allen, which read, "I will wash your sheets for you love, see ya Saturday!!" There also were signs a cleaning agent had been used in the bedroom and bathroom.

The victim was taken to Boulder Community Hospital, where doctors said she had dangerously low blood sugar levels and was suffering from severe hypoglycemia, most likely due to an insulin injection.

Prosecutors said Allen -- a Type 1 diabetic -- not only used insulin, but also had knowledge of its effects from working with his stepfather, who is an endocrinologist.

According to court records, Allen told investigators he had sex with the victim, but that he stopped when she started getting sick. He then offered to clean her bed sheets, but threw them away in a Dumpster instead.

His attorney, Pamela Mackey, said witnesses recalled the two were hitting it off at the bar. She also said the victim's symptoms could have been caused by alcoholic hypoglycemia, which she said can be caused by drinking too much without eating properly.